sporocyte


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Related to sporocyte: Microphyll

sporocyte

(spôr′ə-sīt′)
n.
A cell that undergoes meiosis and produces haploid spores. Also called spore mother cell.
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The MTOC with microtubules radiating from it then moves from the distal surface to the proximal pole located at the former center of the sporocyte (Brown & Lemmon, 1983).
The members of the Jungermanniopsida all have sporocyte quadripolarity that is predicted by intersecting bands of microtubules marking the sites of the future furrows.
There is extensive cytoplasmic preparation for quadripartitioning of the sporocyte that begins well in advance of nuclear division (Fig.
The pre-meiotic bands form a cloverleaf pattern that defines infurrows and the sporocyte becomes deeply quadrilobed (Fig.
The three dimensional shape of the metaphase I sporocyte is shown in Fig.
The number of chloroplasts is reduced from several in the differentiating archesporial cells to only a single plastid in each premeiotic sporocyte. A thick wall consisting of a mucopolysaccharide of uncertain composition is laid down by the sporocyte and the cellulosic vegetative cell wall lyses releasing the sporocytes into a common spore chamber.
POs are usually associated with meiotic quadripolarity in the Jungermanniopsida where sporocytes are deeply quadrilobed (Fariner, 1895; Brown et al., 1986).
texanus, a species with large, unlobed polyplastidic sporocytes. Sphaerocarpos along with Riella and Geothallus comprise the small order Sphaerocarpales, a distinct and early divergent order.
Compare the QMSs shown in adjacent sporocytes (Fig.
The early unlobed sporocytes contain four plastids (Fig.
Cytokinesis occurs at boundaries of domains delimited by nuclear-based microtubules in sporocytes of Conocephalum conicum (Bryophyta).
Pre-meiotic bands and novel meiotic spindle ontogeny in quadrilobed sporocytes of leafy liverworts (Jungermannidae, Bryophyta).